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United States Patent | 5,025,144 |
Odom ,   et al. | June 18, 1991 |
The present invention is directed to method and means for converting an energetic radiation image into an accelerated electron image, impacting the accelerated electron image onto an anode target to create both a charge image an a visible light image, producing signals representative of at least one of the two spatial coordinates of the electrons on the target and transmitting the visible light image for viewing.
Inventors: | Odom; Robert W. (446 Jackson Ave., Redwood City, CA 94062); Strathman; Michael D. (5616 S.E. Hawthorne Blvd., Portland, OR 97215) |
Appl. No.: | 254442 |
Filed: | October 6, 1988 |
Current U.S. Class: | 250/207; 250/214VT |
Intern'l Class: | H01J 040/14 |
Field of Search: | 250/207,213 VT,369,372 313/103 CM,105 CM |
3676676 | Jul., 1972 | Somer | 250/207. |
3691382 | Sep., 1972 | Somer | 250/207. |
3715594 | Feb., 1973 | Drohan et al. | 250/372. |
3965354 | Jun., 1976 | Fletcher et al. | 250/372. |
4024390 | May., 1977 | Bosserman et al. | 250/207. |
4217489 | Aug., 1980 | Rosier | 313/103. |
4345153 | Aug., 1982 | Yin | 250/369. |